Booth just jumped down from the president's box and hobbles backstage so, he could get to the side entrance where his horse was.
Oh my god
The actors are caught by surprise when both comes back stage and rushes past them. They also become very confused because someone that was not part of the play just came from the stage and rushed past them.
Booth frantically drives away after shooting Lincoln. Wondering if he will be able to get out of Washington D.C, because most of the bridges are closed because the civil war has just ended.